Document Type

Peer-Review Article


The western bean cutworm (Striacosta albicosta (Smith)) is a key pest of corn (Zea mays L.) and dry beans (Phaseolus vulgaris L.). This observational study demonstrates that in addition to these hosts, western bean cutworm readily feeds on industrial hemp (Cannabis sativa L.) and completes development on it under controlled laboratory conditions. In the laboratory, individual larvae were reared on a diet exclusively of hemp inflorescences; 57% survived to form prepupae and 15% emerged as moths. In the field, first instars were caged on hemp plants to investigate larval development in situ. After seven days, 82% were recovered as third instars, the majority of which were found in the plant canopy. At 14 and 21 days, later-instars were increasingly recovered under residue or in the soil during daytime hours but were observed crawling and feeding in the canopy at night. This pattern of behavior is similar to western bean cutworm larvae on dry beans. Additional work is needed to document that western bean cutworm females recognize and oviposit on hemp, and that larvae infest and complete development on the crop under open field conditions.

Included in

Entomology Commons



To view the content in your browser, please download Adobe Reader or, alternately,
you may Download the file to your hard drive.

NOTE: The latest versions of Adobe Reader do not support viewing PDF files within Firefox on Mac OS and if you are using a modern (Intel) Mac, there is no official plugin for viewing PDF files within the browser window.